I’m thinking of purchasing the Eero 6 plus to replace my Orbi system. 
 

The Orbi works like a dream but I want the Eero 6 plus as it has the 160mhz wide 5ghz channel whereas Orbi doesn’t offer this. 
 

I’ll be purchasing a 3x pack as I currently have 4 orbi in my house but I’ll also need to add an Eero extender, I live in quite a large house. 
 

The questions I have:

1) Does the Eero extender pack also have the capability to transmit 5ghz at 160mhz? I see there is an Eero extender 6 but I can’t see any extender for the 6+. 

2) Can I use a wired backhaul between Eero router and the additional satellites? I currently have a wired backhaul between my orbis. 
 

thanks a lot for all of your help.